Air conditioner



FIG. 1 is a front, top and right side perspective view of an air conditioner, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a cross-sectional view thereof, taken along line 8—8 of FIG. 2, with the internal system omitted; and,

FIG. 9 is a cross-sectional view thereof, taken along line 9—9 of FIG. 2, with the internal system omitted. 

The ornamental design for an air conditioner, as shown and described. 